Geometry Terms

The two lines above are known as...

• Perpendicular Lines

• Parallel Lines

• Congruent Lines

• Similar Lines

What is the term for a part of a line with two endpoints?

• ray
• angle
• line segment

An angle that measures less than 90 degrees

• acute angle

• right angle

• obtuse angle

• straight angle

Lines that intersect at a 90 degree angle are what type of lines?

• Parallel

• Perpendicular

• Congruent

• Right

What do you call the common endpoint of two rays? 

• Angle
• Segment
• Ray
• Vertex 

What is a name for this line?

• 
• 
• 

Which word describes line segment BC and line segment CG?

• parallel
• perpendicular
• skew

What type of line does the picture represent?

• Parallel 
• Intersecting
• Perpendicular

• line

• segment

• ray

• angle

A triangle with all equal sides.

• equilateral triangle

• isosceles triangle

• scalene triangle